The entire life and ministry of Jesus communicates that living water ministered by the Holy Spirit alone can bring satisfaction to human beings. By offering the woman at the well living water, Jesus creates a new desire that only He can fulfill. He reveals a need in the human heart that can be met only in Himself.
After Jesus had deeply offended the Pharisees by cleansing the temple, Nicodemus came to him, asking a genuine question: "Rabbi, we know that you are from God..." Although Jesus appears to change the subject, he is actually answering the assumption underlying Nicodemus' concern: the faulty Jewish view that he would be a military Messiah. King Jesus would bring liberation and change to His people by individual regeneration from the power of sin, not by political liberation from Roman rule. Jesus is answering the central question of all true seekers: how is Christ's kingship manifested?